The largest holder of Reliance stock is BlackRock Advisors LLC, with 5.1 million shares (10.08% of the company), worth about $1.98 billion as of September 25, 2026. The 10 largest holders together own 41.0%.
In Q2 2026, 708 institutional holdings reports listed shares worth $15.70 billion.
Insiders reported 30 transactions in the last two years: 10 sales worth $30.24 million and no purchases. The newest one on file is from April 27, 2026 (Ajemyan Arthur, Chief Financial Officer).
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026); insider transactions on file through April 27, 2026.

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| BlackRock Advisors LLC | 5.1 million | 10.08% | $2.0B |
| Vanguard Portfolio Management LLC | 3.3 million | 6.44% | $1.3B |
| State Street Corporation | 2.6 million | 5.14% | $1.0B |
| Vanguard Capital Management LLC | 2.3 million | 4.52% | $887.0M |
| Boston Partners Global Investors, Inc. | 2.2 million | 4.30% | $844.0M |
| T. Rowe Price International Ltd. | 1.5 million | 3.02% | $592.0M |
| Wellington Trust Co., NA | 1.3 million | 2.61% | $511.0M |
| Geode Capital Management LLC | 953,533 | 1.87% | $366.0M |
| Fiduciary Trust Company International | 797,568 | 1.56% | $306.0M |
| AllianceBernstein LP | 722,478 | 1.42% | $277.0M |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 708 | – | $15.7B |
| Q1 2026 | 659 | 41.7 million | $12.6B |
| Q4 2025 | 658 | 43.4 million | $12.5B |
| Q3 2025 | 665 | 41.9 million | $11.8B |
| Q2 2025 | 642 | 43.0 million | $13.5B |
| Q1 2025 | 641 | 43.3 million | $12.5B |
| Q4 2024 | 618 | 44.7 million | $12.0B |
| Q3 2024 | 621 | 44.4 million | $12.8B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
| Insider | Date | Title | Transaction | Value |
|---|---|---|---|---|
| Ajemyan Arthur | Apr 27, 2026 | Chief Financial Officer | Sale at price 357.61 - 359.18 per share. | $1.3M |
| Smith William Arthur Ii | Mar 9, 2026 | General Counsel | Sale at price 297.23 - 302.59 per share. | $2.0M |
| Lewis Karla R | Mar 5, 2026 | Chief Executive Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Smith William Arthur Ii | Mar 5, 2026 | General Counsel | Stock Award(Grant) at price 0.00 per share. | – |
| Koch Stephen Paul | Mar 5, 2026 | Chief Operating Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Ajemyan Arthur | Mar 5, 2026 | Chief Financial Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Lewis Karla R | Feb 23, 2026 | Chief Executive Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Smith William Arthur Ii | Feb 23, 2026 | General Counsel | Stock Award(Grant) at price 0.00 per share. | – |
| Koch Stephen Paul | Feb 23, 2026 | Chief Operating Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Ajemyan Arthur | Feb 23, 2026 | Chief Financial Officer | Stock Award(Grant) at price 0.00 per share. | – |
| Koch Stephen Paul | Feb 23, 2026 | Chief Operating Officer | Sale at price 321.39 - 322.80 per share. | $7.7M |
| Koch Stephen Paul | Dec 1, 2025 | Chief Operating Officer | Sale at price 283.26 - 285.32 per share. | $869,389 |
Newest 12 of 30 insider transactions in the last two years.
BlackRock Advisors LLC, with 10.08% of the company (as of September 25, 2026). Next: Vanguard Portfolio Management LLC (6.44%) and State Street Corporation (5.14%).
708 institutional holdings reports listed Reliance shares in Q2 2026 worth $15.70 billion.
In the last two years insiders reported 10 sales and no purchases (30 transactions in all); the newest on file is from April 27, 2026.